Finding the Fourth Proportional to 85,547,679.80, 128,337,492.08 and 38,864,441.62
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Solution
The fourth proportional to 85,547,679.80, 128,337,492.08 and 38,864,441.62 is: 58,303,918.71
Step by Step Solution
- Step 1: Write the proportion equation
85,547,679.80 : 128,337,492.08 = 38,864,441.62 : x - Step 2: Convert to fraction form
85,547,679.80/128,337,492.08 = 38,864,441.62/x - Step 3: Cross multiply
85,547,679.80x = 128,337,492.08 × 38,864,441.62 - Step 4: Simplify right side
85,547,679.80x = 4,987,764,968,857,956 - Step 5: Solve for x
x = 4,987,764,968,857,956/85,547,679.80 - Step 6: Final answer
x = 58,303,918.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.